delete_cache.php

<?php
//delete dummy image cache
    $to_be_deleted = array();
    for($i=1; $i<=20; $i++) {
        $to_be_deleted[] = "dummy_a".$i."_jpg";
    }

    for($i=1; $i<=18; $i++) {
        $to_be_deleted[] = "dummy_hotels".$i."_jpg";
    }

    for($i=1; $i<=19; $i++) {
        $to_be_deleted[] = "dummy_restaurants".$i."_jpg";
    }

    foreach($to_be_deleted as $value) {
        delete_transient($value);
    }